Suu is a Slime and is the fourth girl to move in with Kimihito, albeit unofficially. She snuck into Kimihito's house without notice while looking for sources of water. Known for her amorphous form and bubbly personality, Suu is one of the more unique characters in the series. She has the ability to change shape and size, as well as absorb objects and liquids.

Prior to her appearance, Slimes were still considered dangerous creatures by humans. And thanks to Ms. Smith not wanting to bother with and overlooking the issue, they are still thought of that way outside of the people she interacts with. Despite her unusual nature, Suu is incredibly innocent and curious about the human world. Her interactions with the other monster girls and the human protagonist, Kimihito, often lead to comedic and heartwarming situations.   

Appearance and Personality

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Suu's most striking feature is her ability to change shape at will. In her natural form, she's a large, amorphous blob of translucent blue slime. A tuft of green "hair" with three yellow "antenna" adorns her gelatinous body. Despite her shape-shifting abilities, Suu retains her signature green "hair" with a yellow antenna in most forms. This makes her a recognizable character even when she's not in her slime form

To interact with humans more comfortably, Suu can transform into a humanoid shape. This form is usually similar in size and build to another character named Papi. However, her appearance is incredibly flexible. She can grow taller and develop a more curvaceous figure if she absorbs enough water. On the other hand, dehydration causes her to shrink dramatically, leaving only her head and hands visible.

Powers and Abilities

Credits: Amino

• Shape-shifting: Suu can alter her body's form at will, allowing her to mimic the appearance of other beings or objects. This ability is crucial for her interaction with humans and other creatures.
• High Adaptability: Being a slime, Suu can adapt to various environments and conditions. She can survive in water, land, and extreme temperatures.
• Absorption: Suu can absorb liquids and substances, including water, which is essential for her shape-shifting and overall well-being.
• Regeneration: Like many slime-like creatures, Suu can regenerate damaged parts of her body.
• Elasticity: Her body is highly elastic, allowing her to stretch and contort in various ways, granting her a degree of flexibility and maneuverability.

Trivia

• She was not brought to Kurusu by Ms. Smith.
• She is the sole pseudohuman monster currently residing in Kurusu House.
• She tends to approach anyone with spilled liquid on them, often targeting vulnerable areas.
• Centorea suspects Suu's actions are influenced by observing the other girls' behaviors, particularly Miia's seductive tactics and Rachnera's bondage.
• Suu can hum and speak simple words without visible mouth movements.
• She is the only character shown without any genital censorship due to her lack of genitalia.